CN103608591B - Including composition metal-polymer bushings and the assembly of bent axle - Google Patents

Including composition metal-polymer bushings and the assembly of bent axle Download PDF

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Publication number
CN103608591B
CN103608591B CN201280028935.XA CN201280028935A CN103608591B CN 103608591 B CN103608591 B CN 103608591B CN 201280028935 A CN201280028935 A CN 201280028935A CN 103608591 B CN103608591 B CN 103608591B
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CN
China
Prior art keywords
lining
polish
axle journal
metallic particles
polymeric material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201280028935.XA
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Chinese (zh)
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CN103608591A (en
Inventor
M·G·本科
W·E·拉普
D·J·勒帕克
A·L·巴特沃恩
D·扬达
D·R·多尔曼
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Trane International Inc
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Trane International Inc
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Publication of CN103608591A publication Critical patent/CN103608591A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008Hermetic pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/24Brasses; Bushes; Linings with different areas of the sliding surface consisting of different materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00Manufacture
    • F04C2230/90Improving properties of machine parts
    • F04C2230/92Surface treatment
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/50Bearings
    • F04C2240/56Bearing bushings or details thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/04PTFE [PolyTetraFluorEthylene]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00Material properties
    • F05C2251/14Self lubricating materials; Solid lubricants
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00Other material characteristics; Treatment of material
    • F05C2253/04Composite, e.g. fibre-reinforced
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00Engines or pumps
    • F16C2360/42Pumps with cylinders or pistons
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/17Crankshaft making apparatus
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49229Prime mover or fluid pump making
    • Y10T29/49236Fluid pump or compressor making
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49636Process for making bearing or component thereof
    • Y10T29/49643Rotary bearing
    • Y10T29/49647Plain bearing
    • Y10T29/49668Sleeve or bushing making
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/21Elements
    • Y10T74/2173Cranks and wrist pins

Abstract

A kind of assembly including composition metal polymer bushings, this lining have include the outer metal level of inner surface, the polymeric material being sintered between the metallic particles of this inner surface, metallic particles, generally limited by the exposed portion of polymeric material and metallic particles polish inner surface, be formed at the multiple gaps formed between metallic particles and polymeric material and by the multiple spines limited by polymeric material being projected into above metallic particles.Nominally these spines occupy at least about 8% area on the cylindrical reference surface that the inner surface with polish overlaps.This assembly also includes bent axle, and this bent axle has the axle journal being at least partly received in lining and being supported by the inner surface of polish.This axle journal is polished to the surface accuracy of about 0.1 micron or less to reduce the wear rate of lining.

Description

Including composition metal-polymer bushings and the assembly of bent axle
Technical field
The present invention relates to compressor, and relate more specifically to use lining within the compressor and bent axle group Part.
Background technology
The swirl type cold compressor sealed includes the bent axle generally rotatably supported by lining.Stopping After Zhuaning, the cold-producing medium in scroll compressor can behave as " degreasing agent ", and removal is positioned at bent axle And/or the remaining lubricant on lining.Then, when restarting compressor, lining and bent axle have Few or there is no remaining lubricant, till additional lubricant pump is delivered to lining and bent axle.Cause This, can form less desirable high frictional force, consequently, it is possible to cause the mistake of lining between bent axle and lining Degree weares and teares and/or frays, and is likely to reduced the service life of lining.
Summary of the invention
The present invention provides a kind of assembly including composition metal-polymer bushings on the one hand, and this lining has Have and include the outer metal level of inner surface, be sintered between the metallic particles of this inner surface, metallic particles In polymeric material, the polish generally limited by the exposed portion of polymeric material and metallic particles Surface, multiple gaps being formed between metallic particles and polymeric material and by being projected into metal The multiple spines limited above Li, by polymeric material.These spines occupy the inner surface with polish Nominally at least about 8% area on the cylindrical reference surface overlapped.This assembly also includes bent axle, this song Axle has the axle journal being at least partly received in lining and being supported by the inner surface of polish.By this axle Neck is polished to the surface smoothness of about 0.1 micron or less to reduce the wear rate of lining.
The present invention provides assembling composition metal-polymer bushings and the method for bent axle on the other hand.Lining Including outer metal level, the metallic particles of the inner surface being sintered to this outer metal level and be positioned at metallic particles Between polymeric material.The method includes: hole the inner surface of lining with at least in part Expose metallic particles, be consequently formed and generally limited by the exposed portion of polymeric material and metallic particles The inner surface of polish, forms spine with polymeric material, and these spines highlight after the drilling step Above metallic particles, nominally and occupying the cylindrical reference surface that the inner surface with polish overlaps At least about 8% area, the axle journal of bent axle is polished to the surface smoothness of about 0.1 micron or less, Polished axle journal is inserted in lining, and with the inner surface bearing journal of the polish of lining.
The method that the present invention provides assemble compressible machine at another aspect.The method include provide composition metal- Polymer bushings and bent axle.Lining includes outer metal level, is sintered to the gold of the inner surface of this outer metal level Metal particles and the polymeric material between metallic particles.The method also includes the interior table to lining Face carries out holing to expose at least in part metallic particles, is consequently formed generally by polymeric material and gold The inner surface of the polish that the exposed portion of metal particles limits, forms spine with polymeric material, these Spine is projected into above metallic particles after the drilling step, and occupies the inner surface name with polish The area of at least about the 8% of the cylindrical reference surface of upper coincidence, is polished to about 0.1 by the axle journal of bent axle The surface smoothness of micron or less, inserts polished axle journal in lining, with the polish of lining Inner surface bearing journal, and lining and bent axle are navigated in the shell of compressor.
The present invention provides a kind of method of assemble compressible machine on the other hand.The method includes providing compound Metal-polymer lining and bent axle.Lining includes outer metal level, is sintered to the inner surface of this outer metal level Metallic particles, polymeric material between metallic particles and be positioned at metallic particles and polymer Multiple gaps between material.The method also includes holing the inner surface of lining, so that metal At least some in granule and gap is at least partially exposed to the inner surface of polish, is consequently formed total The inner surface of the polish that ground is limited by the exposed portion of polymeric material and metallic particles, by lubricant It is coated in the inner surface of polish and the axle journal of bent axle, axle journal is inserted lining, uses lining The inner surface bearing journal of polish, lining and bent axle are navigated in the shell of compressor, will Lubricant is coated to after in the inner surface of polish and axle journal relative to lining turning crankshaft axle Neck, and utilize the hydrokinetic pressure formed between axle journal and bearing to make gap fill out at least in part It is filled with lubricant.
By considering that detailed description below and accompanying drawing, the further feature of the present invention and aspect will become clear Chu.
Accompanying drawing explanation
Fig. 1 is the front perspective view of the assembly of the present invention, this assembly include composition metal-polymer bushings, Bent axle and it contains the compressor of lining and bent axle.
Fig. 2 is the amplification view of a part for the lining cuing open Fig. 1 before machining process, Remove a part for bush inside in the figure.
Fig. 3 is the amplification view of a part for the lining cuing open Fig. 1 after machining process, Remove a part for bush inside in the figure.
Fig. 4 is the enlarged drawing of the hub sections shown in Fig. 3, and this illustrates polish on lining Inner surface.
Fig. 5 A is to be shown with fat as lubricant to assemble the flow chart of the method for the compressor of Fig. 1.
Fig. 5 B is to be shown with oil as lubricant to assemble the flow chart of the method for the compressor of Fig. 1.
Before any embodiment of the explaination present invention in detail, it should be noted that the application of the present invention is not limited to The structure of parts shown in explaination or accompanying drawings below and the details of structure in the description below.Energy of the present invention Put into practice other embodiments or can implement in every way.Equally, it should be noted that used arranging in literary composition Diction and term are in order at descriptive purpose, and are not construed as restrictive.
Detailed description of the invention
Fig. 1 illustrates assembly 10, and this assembly includes composition metal-polymer bushings 14, bent axle 18 and pressure Contracting machine 22, lining 14 and bent axle 18 cover in this compressor 22.Bent axle includes at least one axle journal 24, this axle journal is received in lining 14, and is rotatably supported by lining 14.Compressor 22 constructs Becoming the swirl type cold compressor 22 sealed, it includes movable scroll (not shown), this movable scroll Bent axle 18 is driven by eccentric part 25 in the way of rotating relative to fixing scroll (the most not shown). Except being positioned on axle journal 24 by lining 14, roughly the same lining (not shown) can be positioned on partially Between central member 25 and movable scroll.Or, compressor 22 may be configured to pump refrigerant or appoints What any one in many different modes of its material.
With reference to Fig. 2, lining 14 includes having the outer metal level 26 of inner surface 30, be sintered to inner surface The metallic particles 34 (such as, bronze, aluminum etc.) of 30 and be positioned between metallic particles 34 low Friction polymer material 38.This lining 14 can be by metal company limited of Tokyo Datong District with model DDK55 buys.Polymeric material 38 can include only single polymer (such as, politef) Or polymeric material 38 can include the mixture of two or more different polymer.Lining 14 exists The unprocessed inner surface 42 limited completely is included by polymeric material 38 under its original state.Then, Polymeric material 38 is around metallic particles 34, and is stacked and placed on metallic particles 34, thus limits and is positioned at Multiple holes between metallic particles 34 and polymeric material 38 or gap 46.
Before lining 14 and bent axle 18 are covered in compressor 22, first lining 14 machine is added Work becomes to expose metallic particles 34 at least in part, is consequently formed generally by polymeric material 38 and metal The inner surface 48 (Fig. 3) of the polish that the exposed portion of grain 34 limits.Particularly, boring procedure is used In the unfinished inner surface 42 of lining 14 is machined or holes, so that metallic particles 34 reveals Go out.Can use that be fixed to by lining 14 can relative to cutting element (such as, single-point cutting element etc.) Implementing boring procedure in lathe in the main shaft rotated, in this lathe, cutting element is relative to lining 14 is axially displaceable to perform drilling operation.
Inventor has been found that implementing boring procedure (such as, when using lathe) in some conditions uses Polymeric material 38 forms spine 50, and spine is projected into above metallic particles 34, and occupies and essence Nominally the area of at least about the 8% of the cylindrical reference surface 52 that the inner surface 48 of processing overlaps (figure 4).It is desirable that the essentially all polymeric material 38 on the inner surface 48 of polish will be projected into Above metallic particles 34.But, due to the characteristic of boring procedure, on the inner surface 48 of polish Also the multiple valley 54 limited by polymeric material 38 are formed.Spine 50 is as crankshaft journal 24 and lining Solid lubricant source between set 14 is effective, because it can not be due to the refrigeration in compressor 22 The fat effect of going of agent is removed.It is preferred that spine 50 includes measuring from cylindrical reference surface 52 The height H of at least about 10 microns.
Such as, inventor has been found that with lining 14 every revolution about 0.0028 to about 0.0056 inch Feed rate makes cutting element contribute to forming spine 50 to lining 14 displacement.Inventor also sends out cars on hand Rotate lining 14 with the speed of mainshaft between about 500 to about 1760 turns per minute in Chuan to also contribute to Form spine 50.Additionally, inventor has been found that employing carbide insert or cutting element rather than example Insert or cutting element such as diamond tip contribute to forming spine 50.
With continued reference to Fig. 4, in the gap 46 between metallic particles 34 and polymeric material 38 at least Some are exposed to the inner surface 48 of polish, and valley 54 at least partially defines the interior table of polish Face 48.It is described in more detail below both meanings.
Before bent axle 18 is covered in compressor 22, at least axle journal 24 of bent axle 18 is polished To the surface accuracy (Ra) of about 0.1 micron or less, to reduce the wear rate of lining 14 or to fray. Equally, at least axle journal 24 of bent axle 18 is hardened to the value of at least about 55HRC, with at compressor 22 Operating process in suppress foreign body chip be embedded in axle journal 22.
Then, the lubricant (such as, oil or fat) of primary quantity is coated to the polish of lining 14 On inner surface 48, the axle journal 24 of polishing and hardening may or may not inserted lining 14 by this lining Cover in compressor 22 before.Or, fat can be coated to axle journal 24 or lining 14 and axle journal The combination of the inner surface 48 of the polish of 24.When seated, crankshaft journal 24 is by the finishing of lining 14 The inner surface 48 of work supports.
Then, compressor 22 is installed on testboard bay, and operates so that crankshaft journal 24 is relative Rotate in lining 14.The primary quantity of the lubricant putting on lining 14 and/or crankshaft journal 24 be enough to moisten Sliding lining 14 a period of time, until being provided extra lubricant by the lubricant pump in compressor 22. The hydrokinetic pressure formed between axle journal 24 and lining 14 makes gap 46 be at least partially filled with Lubricant or make gap 46 " being pre-charged with " have lubricant, thus forms multiple lubrications in lining 14 Agent bin.Additionally, hydrokinetic pressure makes the valley 54 in polymeric material 38 at least in part Fill or be pre-charged with lubricant, the additional multiple lubricant reservoir being consequently formed in lining 14.
After compressor 22 stall, can be by cold-producing medium by between lining 14 and crankshaft journal 24 Rest lubricant is removed or removes fat.But, the lubricant reservoir in gap 46 and valley 54 is divided Yong Yu not restart the follow-up of compressor 22, to provide the sufficient lubrication of lining 14, until again by Till lubricant pump in compressor 22 provides stable lubricant stream.Particularly, the storage of q.s Lubricant can ooze out from gap 46 and/or valley 54, to provide the crankshaft journal 24 and static rotated Lining 14 between lubricant, until being provided stable lubrication by the lubricant pump in compressor 22 Till agent stream.Then, restart in set-up procedure by axle journal 24 in the follow-up of compressor 22 With the hydrokinetic pressure formed between lining 14 with lubricator refills gap 46 and valley 54.
Additionally, when crankshaft journal 24 starts to rotate in response to follow-up the restarting of compressor 22, The spine 50 of polymeric material 38 contacts with axle journal 24, and " coating " to rotate axle journal 24 on, To give axle journal 24 by some polymeric materials 38.Therefore, the coated or tax of polymeric material 38 The part giving axle journal 24 plays the effect of solid lubricant, to set up stable lubrication for lining 14 The friction between lining 14 and crankshaft journal 24 is reduced before agent stream.Can each heavy at compressor 22 The polymeric material 38 of additional amount is coated to crankshaft journal 38, to suppress lining by new start-up course The abrasion of 14 or fray, these abrasions and wiping otherwise can cause not having polymeric material 38 and lubrication Agent is oozed out from gap 46 and/or valley 54.
The polymeric material 38 of other amount can be coated on the metallic particles 34 that exposes, the most completely Cover or cover each metallic particles 34 at least in part.The polymerization being coated with of suppression metallic particles 34 The part wears that thing material 38 is covered is on crankshaft journal 24.
Flow chart provided in Fig. 5 A of accompanying drawing is summed up for when using fat as lubricant The said process of assemble compressible machine 22.Or, oil rather than fat can be used to assemble as lubricant Compressor 22, shows this process in Fig. 5 B.At bent axle that lining 14 is machined and polishes and hardens After axle journal 24, lining 14 and bent axle 18 are installed in compressor 22.Then, to compressor Oil groove in 22 provides oil.Finally, testboard bay operates compressor 22 long enough to be sent by oil pump To lining 14, and by hydrokinetic pressure, oil is shifted onto in gap 46 and valley 54.
The various features of the present invention are explained in following claims.

Claims (25)

1. include that an assembly for composition metal-polymer bushings and bent axle, described assembly include:
Composition metal-polymer bushings, described lining includes
There is the outer metal level of inner surface,
It is sintered to the metallic particles of described inner surface,
Polymeric material between described metallic particles,
The polish generally limited by the exposed portion of described polymeric material and described metallic particles Inner surface,
The multiple gaps being formed between described metallic particles and described polymeric material, and
Limited and be projected into the multiple spines above described metallic particles by described polymeric material,
Described spine occupies the area of the inner surface at least 8% of described polish;And
Bent axle, in described bent axle includes being at least partly received in described lining and by described polish The axle journal of inner surface supporting, wherein, is polished to any surface finish of about 0.1 micron or less by described axle journal Spend to reduce the wear rate of described lining.
2. assembly as claimed in claim 1, it is characterised in that at least some in described gap is sudden and violent It is exposed to the inner surface of described polish.
3. assembly as claimed in claim 2, it is characterised in that also include filling institute at least in part State the lubricant in gap.
4. assembly as claimed in claim 1, it is characterised in that also include:
The multiple valley limited by described polymeric material on the inner surface of described polish, and
Fill the lubricant of described valley at least in part.
5. assembly as claimed in claim 1, it is characterised in that described polymeric material includes poly-four Fluorothene.
6. assembly as claimed in claim 1, it is characterised in that make described axle journal harden at least 55HRC, to suppress foreign body chip to embed in described axle journal.
7. assembly as claimed in claim 1, it is characterised in that include described bent axle and described compound The described assembly of metal-polymer lining covers in the swirl type cold compressor of sealing.
8. assembly as claimed in claim 1, it is characterised in that described spine is at described metallic particles Upper prominent at least 10 microns.
9. the method assembling composition metal-polymer bushings and bent axle, described lining includes outer metal Layer, the metallic particles that is sintered on the inner surface of described outer metal level and be positioned at described metallic particles it Between polymeric material, described method includes:
Hole to expose described metallic particles at least in part, thus to the inner surface of described lining Formed in the polish generally limited by the exposed portion of described polymeric material and described metallic particles Surface;
Drill process forms spine with described polymeric material, and described spine is projected into described metallic particles Top, and occupy the area of the inner surface at least 8% of described polish;
The axle journal of described bent axle is polished to the surface smoothness of about 0.1 micron or less;
Described axle journal is inserted in described lining;And
Described axle journal is supported with the inner surface of the described polish of described lining.
10. method as claimed in claim 9, it is characterised in that described lining also includes being formed at institute State the multiple gaps between metallic particles and described polymeric material, and wherein said method also includes At least some in described gap is exposed to the inner surface of described polish.
11. methods as claimed in claim 10, it is characterised in that be additionally included in and described axle journal is inserted Enter in the interior inner surface that before lubricant is coated to described polish of described lining and described axle journal Individual.
12. methods as claimed in claim 11, it is characterised in that also include:
After lubricant is coated to the inner surface of described polish and in described axle journal relative Described axle journal is rotated in described lining;And
The hydrokinetic pressure formed between described axle journal and described lining is utilized to make described gap at least It is partially filled with lubricant.
13. methods as claimed in claim 11, it is characterised in that drill process also includes:
The inner surface of described polish forms valley with polymeric material;
Described method includes:
After lubricant is coated to the inner surface of described polish and in described axle journal relative Described axle journal is rotated in described lining;And
The hydrokinetic pressure formed between described axle journal and described lining is utilized to make described valley at least It is partially filled with lubricant.
14. methods as claimed in claim 9, it is characterised in that drill process includes:
Described lining is rotated relative to cutting element, and
With described lining every revolution about 0.0028 inch and described lining every revolution about 0.0056 inch Between feed rate make described cutting element shift to described lining.
The method of 15. 1 kinds of assemble compressible machines, described method includes:
Thering is provided composition metal-polymer bushings and bent axle, described lining includes outer metal level, is sintered to institute State the metallic particles on the inner surface of outer metal level and the polymeric material between described metallic particles Material;
Hole to expose described metallic particles at least in part, thus to the inner surface of described lining Formed in the polish generally limited by the exposed portion of described polymeric material and described metallic particles Surface;
Drill process forms spine with described polymeric material, and described spine is projected into described metallic particles Top, and occupy the area of the inner surface at least 8% of described polish;
The axle journal of described bent axle is polished to the surface smoothness of about 0.1 micron or less;
Described axle journal is inserted in described lining;
Described axle journal is supported with the inner surface of the described polish of described lining;And
Described lining and described bent axle are navigated in the shell of described compressor.
16. methods as claimed in claim 15, it is characterised in that described lining also includes being formed at Multiple gaps between described metallic particles and described polymeric material, described method also includes described At least some in gap is exposed to the inner surface of described polish.
17. methods as claimed in claim 16, it is characterised in that be additionally included in described in hardening Lubricant is coated to the inner surface of described polish and described axle journal in being inserted into described lining by axle journal before In one.
18. methods as claimed in claim 17, it is characterised in that also include:
After lubricant is coated to the inner surface of described polish and in described axle journal relative Described axle journal is rotated in described lining;And
The hydrokinetic pressure formed between described axle journal and described lining is utilized to make described gap at least It is partially filled with lubricant.
19. methods as claimed in claim 18, it is characterised in that be additionally included on testboard bay behaviour Make described compressor to produce hydrokinetic pressure.
20. methods as claimed in claim 17, it is characterised in that also include:
Valley is formed with polymeric material after the drilling step on the inner surface of described polish;
After lubricant is coated to the inner surface of described polish and in described axle journal relative Described axle journal is rotated in described lining;And
The hydrokinetic pressure formed between described axle journal and described lining is utilized to make described valley at least It is partially filled with lubricant.
21. methods as claimed in claim 15, it is characterised in that drill process includes:
Described lining is rotated relative to cutting element, and
With described lining every revolution about 0.0028 inch and described lining every revolution about 0.0056 inch Between feed rate make described cutting element shift to described lining.
The method of 22. 1 kinds of assemble compressible machines, described method includes:
Thering is provided composition metal-polymer bushings and bent axle, described lining includes outer metal level, is sintered to institute State the metallic particles on the inner surface of outer metal level, polymeric material between described metallic particles And the multiple gaps being formed between described metallic particles and described polymeric material;
The inner surface of described lining is holed, so that in described metallic particles and described gap extremely Some are exposed to the inner surface of polish less, are consequently formed generally by described polymeric material and described gold The inner surface of the described polish that the exposed portion of metal particles limits;
Lubricant is coated in the inner surface of described polish and the axle journal of described bent axle;
Described axle journal is inserted in described lining;
Described axle journal is supported with the inner surface of the described polish of described lining;
Described lining and described bent axle are navigated in the shell of described compressor;
After lubricant is coated to the inner surface of described polish and in described axle journal relative Described axle journal is rotated in described lining;And
The hydrokinetic pressure formed between described axle journal and described lining is utilized to make described gap at least It is partially filled with lubricant.
23. methods as claimed in claim 22, it is characterised in that after being additionally included in drill process Forming spine with described polymeric material, described spine is projected into above described metallic particles, and occupies The area of the inner surface at least 8% of described polish.
24. methods as claimed in claim 23, it is characterised in that also include:
Paddy is formed with described polymeric material after the drilling step on the inner surface of described polish Portion;And
The hydrokinetic pressure formed between described axle journal and described lining is utilized to make described valley at least It is partially filled with lubricant.
25. methods as claimed in claim 23, it is characterised in that formed with described polymeric material Spine includes being formed and is projected into the spine of at least 10 microns above described metallic particles.
CN201280028935.XA 2011-05-09 2012-05-04 Including composition metal-polymer bushings and the assembly of bent axle Active CN103608591B (en)

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US13/103,793 US8613555B2 (en) 2011-05-09 2011-05-09 Composite metal-polymer bushing and crankshaft assembly
US13/103,793 2011-05-09
PCT/US2012/036510 WO2012154558A2 (en) 2011-05-09 2012-05-04 Composite metal-polymer bushing and crankshaft assembly

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BR112013028703A2 (en) 2017-01-24
WO2012154558A2 (en) 2012-11-15
CN103608591A (en) 2014-02-26
US8613555B2 (en) 2013-12-24
EP2707600A4 (en) 2015-05-06
EP2707600B1 (en) 2017-07-12
BR112013028703B1 (en) 2022-11-16
US20120288392A1 (en) 2012-11-15
EP2707600A2 (en) 2014-03-19

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